Device for adjusting a block cylinder of a printing unit, e.g. for tube printing machines

摘要

A block cylinder (128) is mounted via eccentric bushes (46, 48) so as to be axially displaceable in frame plates (10, 12). The eccentric bushes are adjustable via toothed rings (54, 56) which are connected to them in order to align the block cylinder (128) to an impression cylinder (20). For circumferential registering, the block cylinder (128) is driven via two obliquely toothed gearwheels (26, 28), one of which is adjustable in the axial direction by means of a threaded drive (90 to 102). A further threaded drive (114 to 120) engages via an axial bearing (108) directly on the shaft of the block cylinder in order to adjust the latter in the axial direction. <IMAGE>